Formation of bulk nanostructured Al3Ni from elemental micropowders using high-pressure torsion

Ali Alhamidi, Kaveh Edalati, Zenji Horita

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The formation of bulk nanograined Al3Ni intermetallics from elemental micro-powder mixtures of Al-25 mol.% Ni are studied after processing by high-pressure torsion (HPT) for various turns at 473 K and at 573 K. It is found that nanograined Al3Ni intermetallics with high angles of misorientation are produced at temperatures well below the melting temperature. The fraction of Al3Ni intermetallics increases by increasing the shear strain and increasing the HPT processing temperature. During HPT, both Ni and Al atoms diffuse significantly in each other with a diffusion coefficient well comparable to the atomic interdiffusion in the Al3Ni intermetallic at its melting temperature.

Original languageEnglish
Title of host publicationLight Metals Technology 2013
Pages378-382
Number of pages5
DOIs
Publication statusPublished - Aug 30 2013
Event6th International Light Metals Technology Conference, LMT 2013 - Old Windsor, United Kingdom
Duration: Jul 24 2013Jul 26 2013

Publication series

NameMaterials Science Forum
Volume765
ISSN (Print)0255-5476

Other

Other6th International Light Metals Technology Conference, LMT 2013
CountryUnited Kingdom
CityOld Windsor
Period7/24/137/26/13

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All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Alhamidi, A., Edalati, K., & Horita, Z. (2013). Formation of bulk nanostructured Al3Ni from elemental micropowders using high-pressure torsion. In Light Metals Technology 2013 (pp. 378-382). (Materials Science Forum; Vol. 765). https://doi.org/10.4028/www.scientific.net/MSF.765.378